Sorry if this has been mention but I'm still reading through this forum and can't see it anywhere ...anyways if you read the HTML source code it has a list of the cast.
CONTENT= Official Site of Transformers: The Movie, Directed by Michael Bay. Their War. Our World. Dueling alien races -- the Autobots and the Decepticons -- bring their battle to Earth, leaving the future of humankind hanging in the balance. In theaters July 4, 2007 from Paramount Pictures and DreamWorks Pictures. Keywordst="transformers, autobots, autobot, decepticon, decepticons, transformers robots, robots in disguise, transformers movie, transformers the movie, cybertron, transformers live action movie, transformers game, Steven Spielberg, Michael Bay, Josh Duhamel, Shia LaBeouf, Bernie Mac, John Voigt, Michael Clarke Duncan, John Turturro, Tyrese Gibson"